Steel [TOP QUALITY] Our folding bracket is made of high carbon steel with plated surface to ensure its durability, excellent rust resistance and long service life. PERFECT SELF-LOCKING DESIGNThis hinge hardware has a self-locking design, when the legs are folded, they will automatically lock, safe and reliable. 4 PIECES OF HEAVY DUTY FOLDING BRACKETSThese folding brackets are 2.5mm thick and can hold up to 500 pounds each when locked in the 90 degree position. The set also comes with 45 high-quality screws to help you accomplish many of life's creative ideas. EASY INSTALLATIONEach folding bracket is designed with multiple locating holes that can be easily fixed with screws. Once installed, simply press the center latch to bend or unfold the legs. Widely UsedIt can be widely used for folding furniture, such as folding table legs, folding bed legs, folding stool legs, desks and workbenches, etc., which will help you save a lot of space.